Improvement in elevators for saccharine liquids



E. P. LAREE.

ELEVATORS FOR SACCHARINE LIQUIDS.

Patented Nov. 9, 1875.

INVENTOR.

WITNESSES:

62 6: f M ii;

ATTORNEY.

MPETERS, PHOTO-LITHOGRAPHER, WASHINGTON. D. C.

NIT D TATES EUGENE P. LA E O PHILADELPHIA, PENNsYLvANIA, ASSIGNOR OFHALF His nrenr'ro EAYMoND CAPE,

or SAME PLACE,

IMPROVEMENT IN ELEVATORS FOR SACCHARINE LIQUIDS.

Specification forming part of Letters Patent No. 169,712, dated November9, 1875; application filed October 14, 1575.

To all whom it may concern:

Be it known that I, EUGENE PROSPER LA- REE, of the city and county ofPhiladelphia, in the State of Pennsylvania, have. invented a. certainnew and useful Improvement in Elevators for saccharine Liquids, of whichthe following is a specification:

The object of my invention is to provide a simple and convenientapparatus for elevating saccharine liquids from one defecating pan orboiler to another, so as to obviate the slow and injurious operation ofladling, and thereby to economize time and labor, and improve thequality of the clarified liquid; to which end my improvement consists inthe combination of a screw-conveyer and an inclosing casing with asteam-engine, which rotates the screw-conveyer, and an ejector, operatedby the exhaust-steam of the engine, as hereinafter more fully set forth.

In the accompanying drawings, Figure l is a vertical longitudinalcentral section of an elevator for saccharine liquids embodying myimprovement; Fig. 2, a vertical transverse section of the same at thecenter of the steamsupply pipe; Fig. 3, an end view of the same; andFig. 4 a view in elevation of the delivery-nozzle.

To carry out the object of my invention I provide a screw-conveyor, A,which is formed upon or secured to a hollow shaft, A, and is mounted inhearings in a casing, B, within which it is titted neatly, so as torevolve without undue friction. A receiving-nozzle, B, is formed uponthe lower portion of the casing, and a delivery-nozzle, B is secured toone end thereof, the other end being closed by a plate, 13. The diameterof the delivery-nozzle is reduced gradually toward its outer end, uponwhich a flange is formed for the attachment of a discharge'pipe. A hub,N, is formed at the center of the inner end of the deliverynozzle toserve as a bearing for the hollow shaft, A, and is united to the nozzleby arms I), so as to admit of the passage of the saccharine liquid tothe discharge iiipe.

The screw-conveyer extends from the de livery-nozzle B to a transversepartition, B which divides the casing B into two compartments, thelarger of which serves for the reception of the screw-conveyer, and thesmaller to contain a rotary steam-engine, secured noon the hollow shaftA,which passes through a bearing in the partition B In this instance theengine shown is of very simple construction, consisting of a series ofcurved arms, 0, which are united to a hub, 0 between two disks, C Asteam-supply pipe, 0, leads into the engine-compartment and anexhaustopening, 0, therein, furnished with a hinged valve, 0 which opensoutward, communicates with an exhaust passage, 0 terminating at anopening, 0, in the end plate B of the casing. The opening 0isimmediately opposite the open end of the hollow shaft A, so that theexhaust steam from the engine passes thereto and escapes into thedelivery-nozzle of the casing, through a contracted nozzle on the end ofthe shaft. The arrangement of the shaft and delivery-nozzle, as above,serves to form an ejector, which is operated by the exhaust steam. Theoffice of the valve 0 is to prevent any flow of the saccharine liquidinto the engine-compartment.

In the operation of the apparatus, which rests by its feet 13 upon thebottom of the defecator or boiling pan, the rotation of the engineimparts a corresponding movement to the screw-conveyer, which elevatesthe liquid from the pan into the casing and discharges it into thedelivery-nozzle and discharge-pipe. The exhaust steam escaping from thecontracted nozzle of the shaft tends to form a vacuum in the casing, andthereby correspondingly facilitates the action of the screwconveyer.

By the use of my apparatus I am enabled to discharge the contents of alarge pan with great celerity, and the liquid being discharged in asolid stream, the injurious efl'ects of exposing it in small portions tothe atmosphere (as in ladling) are avoided.

It is obvious that the form of engine employed is innnaterial, as it maybe varied without departing from the spirit, of my invention; and I donot, therefore, confine myself to any specific construction thereof.

I claim as my invention, and desire to secure by Letters Patent 1. Thecombination of a screw-conveyer, an

PATENT QFFIG E- ONE- 2 I meme inclosing-easingmid anejeotor,substantially .3; The combination of the easing, divided asset forth.into two compartments, the exhaust-passage, 2. The combination ofaiscrew-conveyer and and the exhaust-valve, substantially as set arotary engine, both secured upon a hollow forth.

shaft, which receives the exhaust steam at EUGENE P. LAREE. one end agddischarges it from they other, into Witnesses:

easing inclosin'g the conveyer and engine, J. SNOWDEN BELL,substantiallyasset forth. RAYMOND GAPE;

